Rocker swivel assembly for chairs

Details Rocker swivel assembly for chairs Rocker swivel assembly for chairs

1979-05-04

1980-12-02

Zugel, Francis K.

Chairs and seats

Back movement resiliently opposed in operating position

Adjustable resistance

297268, 248608, A47C 318

Patent

active

042367522

ABSTRACT:
A rocker swivel assembly for mounting a chair on a lower support for both rocking and swiveling movement of the chair. The assembly includes a one-piece plastic torsion bar unit having a center section and a pair of end sections. The end sections are secured to the underside of the chair and the center section is rotatably mounted on the chair support and restrained against twisting. When the chair is rocked, the end portions of the torsion bar are twisted and the direct seating load of the chair is at all times transmitted directly to the supported center section of the torsion bar by a load bearig member secured to the underside of the chair and slidably engaged with the top side of the center section of the torsion bar.

REFERENCES:
patent: 1732646 (1929-10-01), Flintermann
patent: 3544159 (1970-12-01), Andersson
patent: 3826456 (1974-07-01), Tranter et al.

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